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How much energy is required to heat 10.0 g of ice from -50 to 50 degrees C? The heat of fusion of water is 6.01 kJ/mol and the molar heat capacity is 36.6 J/K mol for ice and 75.3 J/K mol for liquid water.
How many grams of dry NH4Cl need to be added to 2.30 L of a 0.100 M solution of ammonia,NH3, to prepare a buffer solution that has a pH of 9.00
Draw the para isomer produced when toluene reacts with \rm Br_2 in the presence of an iron(III) bromide catalyst
Why does a protic solvent favor E1 over E2? I know with Sn2 a protic solvent would surround the Nu: and hinder it from attacking, but in E2 there is not a nucleophilic attack.
A cell is constructed at 298 K based on the reaction 2 Co3+(aq) + 2 H2O(l) H2O2(aq) + 2 H+(aq) + 2Co2+(aq), E° = 0.14 V. Calculate the pH in the anode compartment if the cell emf = 0.23 V when [Co3+] = 0.17 M, [H2O2] = 0.72 M and [Co2+] = 0.48 M. ..
a solution initially 0.100 m in hocl and 0.300 m in naocl. what is the ph in 0.030 mol of solid naoh is added to 1.00 l
What is the molarity of a solution prepared by dissolving 72.0 g of HCI in enough water to make 500 ml of solution.
The flask was removed, was quickly cooled to condense the volatile liquid, dried and weighed. The mass of the flask and the volatile liquid is 34.743 grams
Strong, non-charged bases are useful in base-catalyzed reactions. Many non-charged nitrogen bases are commonly used in various reactions. Perhaps the strongest non-charged base is shown below
Capsaicin, the compound that gives the hot taste to chili peppers, has the formula C18H27NO3. (a) Calculate its molar mass.
Determine how many grams of Oxygen(O2) would be used when 10.82 Litres Nitric oxide (NO(g) is formed at the temperature of 19.82 degree Celsius and pressure of 1.092 atm?
identify any incorrect formulas. explain your answer.a. mg2so43b. rb3asc.
What is the value of the rate constant (k) for this reaction at this temperature? b) Write the rate law for the reaction c) If the initial concentration of AB is .250M
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